PALEOZOIC TIME — CARBONIC. 651 



1. TJp'pcr Barren Series, or Permian Beds. 

 A. DuNKARD Ckeek Measures, Greene County (Southwestern County of Pa,), 



ABOUT 700 FEET. 



Beneath 80' of concealed beds including some limestone : 



Limestone 10', sandstone 50', limestone 4', shale 80' 144' 



Sandstone 30', shale 12', limestone 2 J', sandstone and shale 80' 124|' 



Nineveh coal-bed If 



Sandstone 100', limestone 2\', bitum. shale 1', sandstone 36' 139^' 



Dunkard coal-bed li' 



Sandstone and shale 30', limestone 3' 33' 



Limestone 2 '-5', sandy shale 70', limestone 6'-15' 78'-90' 



Goal, local bed , If 



Shale and iron ore 10', sandstone 31', limestone 2\', sandstone 19'-30' 62i'-73^' 



B. Washington Group, Maximum Thickness 400 feet. 



Sandstone 40^ Upper Washington limestone 30' 70' 



Jolleytoivn coal-bed 1 



Middle Washington limestone 15', sandstone 40' 55' 



Sandstone and shale 20', limestone 8', sandstone and shale 60' 88' 



Bituminous shale or coal-bed 1' 



Lower Washington limestone 20' 



Washington coal-bed 10' 



Laminated sandstone 12' 



Little Washington coal-bed V 



Limestone 20', shale 6' 26' 



Waynesburg " 5 " coal-bed 1' 



Limestone 8', sandstone 30' 38' 



Waynesburg "^ " coal-bed , 2' 



2. Upper Productive Coal Series or Monongahela Biver Series, Maximum 494 feet. 



Shale 0'-12', Waynesburg sandstone 70' 70'-82' 



Waynesburg main coal-bed 6' 



Sandstone and shale 60', limestone 5', sandstone 20', fire clay 3' 88' 



JJniontown coal-bed l'-3' 



Sandstone and shale 60', limestone and shale 18', sandy shale 40', 



limestone and shale 55' 173' 



SewicJcley coal-bed l'-6' 



Sandstone and shale 25', limestone 18', sandstone 10' 53' 



Redstone coal-bed l'-6' 



Shale 0'-12', Pittsburg Upper sandstone 40', limestone 10' 50'-62' 



Pittsburg coal-bed 5'-12' 



Fire clay 3' 



3. Lower Barren Coal-measures (in Westmoreland County, Pa.), 654: feet. 



Limestone 6', shale 10' (underneath 3' fire clay and Pittsburg coal) 16' 



Coal-bed 1' 



Shale 10', limestone 3', shale 25' 38' 



Coal li' 



Shale 35', Connellsville sandstone 60' (not persistent), limestone 5' 100' 



Coal-bed 1' 



Clay 9', Morgantown sandstone 50', limestone 4' 63' 



